Fluid-translating device.



Patented, June 3, 1913.

E. SHAVER, 'Jn. FLUID TRANSLATING DEVICE.

- APPLIUATION TILED AUG. 8, 1910. 1,063,294.

IS ATTORNEY IN FACT J A1 W W M P w. A M s v I W ll. 4 M 9 /u A T. m aiy fl w z [III/ UNITED sTA'rt s P TE. rub.

EDWARD SEAVER, JR., 0F PITTSBURGH, PENNSYLVANIA, ASSIGNOR, BY MESNE ASSIGNMENTS, TO THE COLONIAL TRUST COMPANY, TRUSTEE, 0F PITTSBURGH; PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

FLUID-TRANSLATING DEVICE.

Specification ofLetters Patent.

Patented June- 3, 1 9% To all whom it may concern Be it known that I, EDWARD SEAVER, J r., a citizen of the United States, and a resident 'of Pittsbur h, in the county of Allegheny and State 0 Pennsylvania, have made a new and useful Invention in Fluid-Translating Devices, of which the following is a specification.

This invention relates to fluid translating devices and particularly to devices employing a stream of liquid for mechanically-entraining and removing air and other noncondensable gases. 1

An objectof my invention is to produce a fluid translating device employing a jet of liquid which is capable of condensing condensable vapors and fluids and of entraining non-condensable vapors and fluids.

A further object is to produce a high speed pump or fluid translating device capable of operatin in conjunction with a-condenser and of e ciently maintaining a high vacuum in the condenser.

.A further object is to produce a fluid translating device or pump in which a jet of liquid, for example water, is employed in entraining and ejecting air and other non-condensable ases and which may be employed for producing and maintaining a high vacuum or for delivering air or other non-condensable gases from a low to a higher pressure.

These and other objects I attain in a condenser embodying the features herein described, and illustrated in the drawings accompanying this application and forming a part thereof.

In the drawings, Figure 1 is a longitudinal section of a device em odying my invention. Fig. 2 is a developed section of a portion of an annular row of'blades which form a detail of my invention.

Referring to thedrawings: The apparatus illustrated includes a casing 3,a bladed wheel 4 mounted within the oaslng, and a pump 5, the casing 6 of which is secured to-the casing 3. The interior of the casing 3 communicates with a source ofnon-condensable fluid, such as air, through a fluid admission port 7 and is provided with a delivery port 8 so located in the casing that it delivers a stream of liquid, hereinafter called water for. convenience of description, to blades 9 mounted on the wheel 4. Theport 8 communi'cates with a source of water supply through a passage 10 which is formed within the walls of the casing 3.

The wheel 4 is mounted on a rotatable shaft 12 which extends through the casing 3 and is provided with suitable bearings located exterior to the casing and suitable means, not shown, for packing or sealing the oints between it and the casing. The blades 9 are mounted in any suitable manner on the periphery of the wheel 4 and may, if desired, be formed integrally with the rim of the wheel as shown.

Under normal working conditions of the apparatus illustrated, a high vacuum is maintainedwithin the casing 3, and consequently the port 8 will discharge a stream of water,

into and through the interior of the casin at a,velocity which corresponds to the di ference in absolute pressure between the interior of the casing 3 and the passage 10. It is Well known that a stream comprising a succession of thin leaves or films of water is more effective in entraining and ejecting non-condensable gases than a solid stream or a stream composed of a mass of separate drops. I therefore so construct the blades 9 of the wheel 4 that they will divide the stream of water delivered by the delivery port 8 into a stream of successive leaves or films of water which. is projected laterally of the wheel by the force of its entering velocity, and, after traversing a portion of the interior of the casing 3.is received by the converging and diverging tube or passage 13 located within the casing 3 and formed integrally with the walls of the easing. The converging and diverging tube 13 first collects the stream or rather compacts it into a more or less solid stream of water without reducing its velocity. The velocity energy is then converted into pressure as the stream traverses the-divergent portion of the tube 13,'and, after" the gas or air is partially collected it is delivered throu h an annular port 15 to the pump 5. The impeller 16 of the pump 5 is mounted on the shafti12 and the pump is so arranged that it will discharge 'the'stream of water, with its entrained air or non-condensable gases, into the atmosphere.

In apparatus heretofore employed for ejecting fluid by means of a stream composed of, a succession of thin leaves or films of water, mechanical means have been utilized for forming the leaves and at the same time projecting them at a high velocity so that they are capable of entraining the air and being discharged with the air from the apparatus by virtue of their initial velocity. One of the objects of my invent-ion is to produce means for dividing a stream of water into separate leaves or films without imparting additional velocity to the stream. The advantage of such an arrangement is that the dividing means can be operated with a very small expenditure of power and an efiicient pump may be employed for discharging the liquid with the entrained air from the apparatus. When the apparatus illustrated is operated under normal conditions, the stream of water is delivered by the delivery port 8 at a velocity which corresponds to the difference in absolute pressure between the interior of the casing 3 and the passage 10. In Fig. 2 I have indicated this velocity graphically by means of the line 17 and I have also indicated the velocity of the blades 9 by the line 18. From this diagram it will be apparent that the blades 9 may be so arranged and so inclined relative to the axis of the wheel 4 and, also to the direction of the stream, delivered by the port 8, that the water will be received by the blades without impact and will simply slide through the'spaces between the blades and continue in the direction of its original travel, after being divided into thin leaves, by virtue of its original velocity. If a 28 inch vacuum is maintained within the eas- =1ng 3 and water is delivered to the passage 10 with no gravity head, the water will be discharged through thedelivery'port 8 at an approximate velocity of feet a second, which is amply sufficient to entrain and collectthe non-condensable fluid contained in the casing 3 and to deliver it to the impeller 16 of the pump 5. With this arrangement, it will be apparent that the velocity of the water is obtained without expending energy by merely taking advantage of conditions which must exist in the apparatus.

The apparatus may be started by one of the two following methods: The interior of the casing 3 may be filled with water, and this water may be discharged or evacuated from the casing by means of a pump 5, after the air or fluid admission. port 7 has been closed. With this method it will be seen that a vacuum is created in the casing by the pump 5 and then water can be gradu ally admitted through the delivery port 8 and after the apparatus is running under normal conditions, communication between the source of non-condensable fluid can be opened, or in other words, the admission port 7 can -be opened. A second me h d of would be to employ starting the um P lie port 7 such as a valve means for closing t and means, such as a steamprimer for immediately evacuating sufiicient air from the a interior of the casing to draw in water through the delivery port 8. The water picked up the vacuum, the impelling force imparted by the wheel 4 to the water wouldv decrease; and when normal conditions'were obtained, the wheel would dlvlde the stream of water delivered through the port 8 without imparting velocity to it.

It will be apparent that the apparatus illustrated and that apparatus embodying the principles of my invention may be effectively employed with condensers, since they are capable of handling air under high vacuums. When the device illustrated is used in connection with a condenser, the port 7 will communicate with theair delivery port of the condenser. It will also be apparent that the device may be-employed inl" ejecting air or other fluids, which are subjected to atmospheric or higher pressures.

Having thus described my invention, what I claim is:

1. A fluid translating device comprising means for breaking a liquid stream into 'suc cessive leaves, and means for imparting additional energy to the stream of fluid and for ejecting it from said device. I

2. A fluid translating means for breaking a stream of liquid into successive leaves,'and a pump for receiving the stream discharge from said means and for imparting pressure thereto ing it from said device.

device comprising I and discharg- 3. A fluid translating device comprising means for breaking a liquid stream into successive leaves, and a rotatable impeller for receiving the stream delivered by said means,

and for discharging it from said device.

4. A fluid translating device comprising a casing provided with a fluid admission port, a liquid delivery port, a bladed wheel for breaking up the stream of liquid deliv-I ered by said delivery of separate leaves,

port into a succession means for imparting additional energy; to

paratus.

means for collecting the divided stream delivered by said blades, and

said stream and for ejecting it from said ap-f 5. A fluid-translating device comprising a,

casing provided with a fluid admission port and a liquid delivery port, a rotatable bladed wheel for breaking separate leaves without imparting velocity 1:25 up the stream of liquid "a? dellvered by sald port into a successionoffor imparting additional pressure to said stream and for ejecting it from said device.

6. A fluid translating device comprising a casing provided with a fluid admission port, a liquid delivery ort, mechanically actuated means for breaking up the liquid delivered through said delivery port without imparting velocity thereto, means for collecting th stream so divided and means for impartingadditional pressure to said stream and for ejecting it from said device.

7. A fluid translating device comprising a casing provided with a fluid admission port and a fluid delivery port, means for breaking up the stream of liquid delivered by said delivery port without imparting velocity thereto, a converging and diverging tube for collecting said stream by virtue of its initial velocity, and means for imparting additional pressure to said stream and for ejecting it from said device. 7

8. A fluid translating device comprising a casing provided with a liquid delivery port, rotatable blades for breaking up the stream of liquid delivered by said port, a convergent succession of separate leaves without impart- ,ingadditional velocity thereto, means for receiving the stream delivered by said blades,

means for converting the velocity energy into pressure energy, and a pump for imparting additional pressure energy .to said stream discharging it from said device.

In testimony whereof l have hereunto subscribed my name this 4th day of Aug,

EDWARD SEAVER, J R. Witnesses B. B. HINES; E. W. MoCALLIs'rER.

-Qopiea or this patent may 'be obtained for five cents each, by addressing the Commissioner of Patents, Y Washington, D. 0. a 

